# How to Measure Angle between a Line and a Plane

**URL:** <https://discourse.slicer.org/t/how-to-measure-angle-between-a-line-and-a-plane/42482>\
**Category:** Support\
**Created:** [April 8, 2025, 3:08am UTC](https://discourse.slicer.org/t/how-to-measure-angle-between-a-line-and-a-plane/42482 "2025-04-08T03:08:39Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Sophia-Simeon](https://avatars.discourse-cdn.com/v4/letter/s/90db22/32.png) [@Sophia-Simeon](https://discourse.slicer.org/u/Sophia-Simeon)\
**Post date:** [April 8, 2025, 3:08am UTC](https://discourse.slicer.org/t/how-to-measure-angle-between-a-line-and-a-plane/42482/1 "2025-04-08T03:08:39Z")

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Operating system: MacOs  
Slicer version: 5.8.1

Hello!  
For my scientific studies I need to take length and angle measurements on a 3D skull of a patient. I would like to know if you can move a plane parallel to an inferior position without changing the directions of the plane. I need to measure an angle between a line and a plane, but I would like to move the plane so that it crosses the line to create the angle. Is that even possible?  
If not, is it possible to lengthen the line so that it crosses the plane without changing its direction?  
I would be really happy if you could help me with my questions.

Thank you and best regards!  
Sophia